was left in the tube.
||We have isolated two proteins:
hemoglobin and myoglobin.
|Water is required of all life forms.
||She requested a water
with her meal.
|Coffee is necessary for all lab personnel.
||I'll buy a coffee at Starbucks.
|She studied calculus
||The patient had a renal calculus.
|Film should not be exposed to room light.
||A film formed on the side
of the flask.